How can you identify cleared checks when importing a csv bank transaction file?

Thank you for posting in the QuickBooks Community, kdziedz1. Let me share some information about cleared checks. 

We can view the check detail report to see which checks have cleared in your CSV file.

Here are the steps to pull up the report:

1. Go to Reports.
2. On the search panel, type Check Detail.
3. On that screen, you can see which check already cleared. 

Please Note: On your bank register, the cleared checks will have "C" on the check column.

You can check this article for your reference on uploading your transactions: 

Manually upload transactions into QuickBooks Online.

Moreover, I'm sharing these articles to help you with your bank transactions in the future:

• Categorize online bank transactions in QuickBooks Online
• Void or delete transactions in QuickBooks Online

If you have any concerns about your bank transactions, you're free to reply to this thread or create a new one. Have a great day, and take care!